About IRsweep
IRsweep is a Technology company based in Stafa (Switzerland) founded in 2014, and was acquired by Sensirion in May 2021. Infrared spectroscopic instruments are developed for nano-characterization. IRsweep has raised $10.34 thousand across 6 funding rounds from investors including Sensirion, European Union and Venture Kick. Its focus areas include Semiconductors, Photonics, Nanophotonics and Nanocharacterisation Techniques. Its legal entity is IRsweep AG.
Company details
IRsweep was founded in 2014 in Stafa, Switzerland, within the optical sensing sector. Infrared spectroscopic instruments are produced for nano-characterization, focusing on multi-species analysis of gases and liquids. These tools feature mid-infrared optical spectrometers with microsecond time resolution and broad spectral bandwidth. The technology relies on semiconductor quantum cascade laser frequency combs to enable molecular analysis applications.
- Headquarters Stafa, Switzerland
- Stage Acquired
- SectorsTechnology
- Email••••••••
- Phone•••• ••••
- Website irsweep.com
- Social LinkedIn X
- Acquired by Sensirion (May 2021)
- Legal Name Irsweep Ag
Funding Insights of IRsweep
IRsweep has successfully raised a total of $10.34K across 6 strategic funding rounds. The most recent funding activity was a Grant round of $226.47 thousand completed in September 2021. This substantial capital infusion reflects strong investor confidence in the company's business model, growth potential, and market opportunities. The funding enables strategic expansion, product development, market penetration, and operational scaling to drive long-term value creation and competitive advantage.
- Total Funding $10,339
- Total Rounds 6
- Last Round Grant — $226,469
- First Round $10,339
(Dec 2014)
- Investors Count 3
All 6 funding rounds of IRsweep with amounts and investors; the two latest post-money valuations are shown, the rest are part of the premium plan.
| Date | Amount | Transaction Name | Valuation | Lead Investors | Investors |
|---|---|---|---|---|---|
| Sep 2021 | $226,469 | Grant | – | – | |
| May 2021 | $180,099 | Grant | – | – | |
| Dec 2019 | $1.19M | Grant | – | – | |
| Oct 2018 | $1.11M | Grant | – | – | – |
| Jun 2017 | Seed | – | Sensirion | – | |
| Dec 2014 | $10,339 | Seed | – | Venture Kick | – |
3 investors in total: 3 institutional.
Investors in IRsweep
IRsweep has secured backing from 3 investors, including institutional and venture fund investors. Prominent investors backing the company include Sensirion, European Union and Venture Kick.
| Investor | Description | Founded Year | Domain | Location |
|---|---|---|---|---|
University backed startup accelerator | venturekick.ch | Schlieren, Switzerland | ||
Government entites focused on freedom, democracy, equality and the rule of law, promoting peace and stability | 1958 | europa.eu | Brussels, Belgium | |
Sensors for humidity, gas, and liquid flows are developed. | 1998 | sensirion.com | Zurich, Switzerland |
Investor details for IRsweep
The complete investor list, round-by-round participation and investor portfolios require an active premium plan.
- Complete investor list
- Round participation
- Investor portfolios
- Co-investor network
Verified entity values are shown only after access is granted.
Timeline of IRsweep
4 dated milestones of IRsweep across 7 years, from founding to its latest funding, stage changes and deals.
- Founded IRsweep is founded.
- Funding First funding round of $10K.
- Exit Acquired by Sensirion.
- Funding Latest funding round, Grant, of $226K.
Unlock complete access to The Company Check
Get unrestricted viewing across everything we track — from companies and brands to investors, funding rounds, acquisitions, financials, and more.
- Unlimited viewing on all profiles Companies, investors, financials, funding, acquisitions & directors
- Full access to every database India & global coverage, advanced filters and rich profile details
- Always-on access from your team account Single premium plan for everything you see on the portal
Related news about Irsweep
Complete news archive for IRsweep
Full article history, source details, and older brand coverage require an active premium plan.
- Full article archive
- Source and publication date
- Older coverage
- Brand-specific news history
Verified entity values are shown only after access is granted.
Frequently Asked Questions about IRsweep
IRsweep was founded in 2014.
IRsweep is headquartered in Stafa, Switzerland. It is registered at Stafa, Zurich, Switzerland.
IRsweep is a funded company, having raised a total of $10.34K across 6 funding rounds to date. The company's 1st funding round was a Seed of $10.34K, raised on Dec 2014.
IRsweep was founded in 2014 in Stafa, Switzerland, within the optical sensing sector. Infrared spectroscopic instruments are produced for nano-characterization, focusing on multi-species analysis of gases and liquids. These tools feature mid-infrared optical spectrometers with microsecond time resolution and broad spectral bandwidth. The technology relies on semiconductor quantum cascade laser frequency combs to enable molecular analysis applications.
IRsweep has 3 investors. Key investors include Sensirion, European Union, and Venture Kick.
IRsweep operates through Irsweep Ag.
Yes. IRsweep was acquired by Sensirion in May 2021.